Biology 1002B Lecture Notes - Lecture 7: Microevolution, Biogeography, James Hutton

• School: Western University
• Department: Biology
• Course: Biology 1002B
• Professor: Tom Haffie

Document Summary

Biological evolution refers to gradual change of populations or organisms over time, measuring time in generations rather than years. Aristotle, observed nature and natural history in a ladderlike classification that put gods a(cid:271)o(cid:448)e hu(cid:373)a(cid:374), hu(cid:373)a(cid:374)s a(cid:271)o(cid:448)e a(cid:374)i(cid:373)als et(cid:272) the differe(cid:374)t kinds could never change or become extinct. Biogeography: studies of the world distribution of plants (now called biogeography) raised questions as to the limits to the number of species created by. God, and where they fit into the scala naturae (aristotle"s ladderlike classification) And after each event they became a different set of fossils in the next higher layer. James hutton believed that the earth changed slowly over its history. Charles lyell, came up with the concept of uniformitarianism ( the concept that the geologi(cid:272) pro(cid:272)esses that s(cid:272)ulpted the earth"s surfa(cid:272)e o(cid:448)er lo(cid:374)g periods of time are exactly as the processes observed today)